//
//  NSStringExtra.m
//  SckjLoginSystem
//
//  Created by user on 11-3-15.
//  Copyright 2011 __MyCompanyName__. All rights reserved.
//

#import "NSStringExtra.h"


@implementation NSString(NSStringExtra)
-(BOOL)isEmptyOrNull
{
	if ( self==nil || [self isKindOfClass:[NSNull class]] || [self isEqualToString:@""] || [self isEqualToString:@"(null)"] || [self isEqualToString:@"<null>"] || [self isEqualToString:@"<nil>"]) {
		return YES;
	}else {
		return NO;
	}

													 
}
@end
